RCCrawler Forums

Hardrockguitar1 · 10-30-2006, 03:33 PM

rear tlt axle w/ rear steering.

I used search first and didnt run across this issue

where my servo mount attaches to the plastic pillars on the axle casing, the screws ripped out and broke a pillar(on the axle housing itself - not the the pillar for the above servo link mount)
can I just JB Weld the servo mounting plate to the axle housing? I saw a vendor has some aluminum tlt axle casings coming out...should be a big help for these issues!
if you have a better suggestion than the JB, I am all ears! thanks, Dave

Gula · 10-30-2006, 04:32 PM

My understanding is that JB wont bond to plastic as well at 2 part epoxy would do you still have the broken off parts? if so just re-glue them and redrill the hole for the screw if you have to

Hardrockguitar1 · 10-30-2006, 04:43 PM

the one pillar in question is torn apart. looks like the screw ripped out and it basically exploded. of course I have a spare for the front half of the axle housing....but need the rear lol
I need a different way to mount the servo mount now.

Gula · 10-30-2006, 04:47 PM

Is there a hole in the axle now? If not get some 1/8 id-1/4 od delrin rod grind it with a dremmel to make it look like the old piece and grind your housing to where you could reattach it using epoxy

@tw!ll · 10-30-2006, 04:52 PM

May not have you back crawling this week, but it doesn't seem to be too expensive of a part. http://www2.towerhobbies.com/cgi-bin...&I=LXGHG0&P=OW

Hardrockguitar1 · 10-30-2006, 05:39 PM

that will work, thanks! think I will order 2 for if it happens again. plastic doesnt have the best clamping properties for screws with the stress we put on them lol.

Hardrockguitar1 · 10-30-2006, 08:32 PM

after looking at my setup more, i think the way my upper links are mounted are putting too much stress on the servo mount. it is acting like a lever and prying it from the axle housing.

the upper links fastened flat against the mount have a little wiggle room on the bolts, but when the wheels are in motion pulling the truck, i think the upper links are not giving enough. even using a mount like my shocks have attached to the top of the mounting plate at a side angle would probably lessen the stress a bunch.

I may go with a design like hulkwerks has, or just fab somethjing similar up using the axle mounting holes currently used for shock mounts. any holes in my logic?

HannibalLecter · 10-31-2006, 06:42 AM

Quote:

Originally Posted by Hardrockguitar1

the one pillar in question is torn apart. looks like the screw ripped out and it basically exploded. of course I have a spare for the front half of the axle housing....but need the rear lol
I need a different way to mount the servo mount now.

I couldn't tell which side broke, the long or short. If you'll notice, one of the screw holes is longer than the other. I had problems with stripping out the longer one-so I ran a longer screw - and promptly blew the housing off. That hole isn't very deep, and without drilling a pilot hole, you'll be stressing the plastic and it'll break off if you use too long of a screw. I drilled it out, and then ran a longer screw - hasn't broken and hasn't stripped out.

Hardrockguitar1 · 10-31-2006, 03:33 PM

the short post broke on mine. I ended up trying some jb weld I had around the house and coated everywhere the servo mount meets the axle, then screwed everything back together to set. solid as a rock today! when I relocated my upper links i wont have stress on the servo mount anymore so it will be a non issue. I ordered 2 sets of axle housings in case it happens again though. I like the hulkwerks version where the upper link mount attaches directly to the axle and is formed around the servo. I will order his or make something functionally similar out of angle iron/aluminum.

10-30-2006, 03:33 PM	#1
Hardrockguitar1 Rock Stacker Join Date: Oct 2006 Location: Raleigh Posts: 65	(question) broke servo mount location on axle casing rear tlt axle w/ rear steering. I used search first and didnt run across this issue where my servo mount attaches to the plastic pillars on the axle casing, the screws ripped out and broke a pillar(on the axle housing itself - not the the pillar for the above servo link mount) can I just JB Weld the servo mounting plate to the axle housing? I saw a vendor has some aluminum tlt axle casings coming out...should be a big help for these issues! if you have a better suggestion than the JB, I am all ears! thanks, Dave

10-30-2006, 04:32 PM	#2
Gula I wanna be Dave Join Date: Jun 2006 Location: Here Posts: 2,320	My understanding is that JB wont bond to plastic as well at 2 part epoxy would do you still have the broken off parts? if so just re-glue them and redrill the hole for the screw if you have to

10-30-2006, 04:43 PM	#3
Hardrockguitar1 Rock Stacker Join Date: Oct 2006 Location: Raleigh Posts: 65	the one pillar in question is torn apart. looks like the screw ripped out and it basically exploded. of course I have a spare for the front half of the axle housing....but need the rear lol I need a different way to mount the servo mount now.

10-30-2006, 04:47 PM	#4
Gula I wanna be Dave Join Date: Jun 2006 Location: Here Posts: 2,320	Is there a hole in the axle now? If not get some 1/8 id-1/4 od delrin rod grind it with a dremmel to make it look like the old piece and grind your housing to where you could reattach it using epoxy

10-30-2006, 04:52 PM	#5
@tw!ll RCC Addict Join Date: Feb 2006 Location: Medford, Oregon Posts: 1,261	May not have you back crawling this week, but it doesn't seem to be too expensive of a part. http://www2.towerhobbies.com/cgi-bin...&I=LXGHG0&P=OW

10-30-2006, 05:39 PM	#6
Hardrockguitar1 Rock Stacker Join Date: Oct 2006 Location: Raleigh Posts: 65	that will work, thanks! think I will order 2 for if it happens again. plastic doesnt have the best clamping properties for screws with the stress we put on them lol.

10-30-2006, 08:32 PM	#7
Hardrockguitar1 Rock Stacker Join Date: Oct 2006 Location: Raleigh Posts: 65	after looking at my setup more, i think the way my upper links are mounted are putting too much stress on the servo mount. it is acting like a lever and prying it from the axle housing. the upper links fastened flat against the mount have a little wiggle room on the bolts, but when the wheels are in motion pulling the truck, i think the upper links are not giving enough. even using a mount like my shocks have attached to the top of the mounting plate at a side angle would probably lessen the stress a bunch. I may go with a design like hulkwerks has, or just fab somethjing similar up using the axle mounting holes currently used for shock mounts. any holes in my logic?

10-31-2006, 03:33 PM	#9
Hardrockguitar1 Rock Stacker Join Date: Oct 2006 Location: Raleigh Posts: 65	the short post broke on mine. I ended up trying some jb weld I had around the house and coated everywhere the servo mount meets the axle, then screwed everything back together to set. solid as a rock today! when I relocated my upper links i wont have stress on the servo mount anymore so it will be a non issue. I ordered 2 sets of axle housings in case it happens again though. I like the hulkwerks version where the upper link mount attaches directly to the axle and is formed around the servo. I will order his or make something functionally similar out of angle iron/aluminum.

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